Folding knife



FIG. 1 is a perspective view of a folding knife, showing my new design in a closed position;

FIG. 2 is a right-side elevational view of FIG. 1;

FIG. 3 is a left-side elevational view of FIG. 1;

FIG. 4 is a rear elevation view of FIG. 1;

FIG. 5 is a front elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1;

FIG. 7 is a bottom plan view of FIG. 1;

FIG. 8 is a perspective view thereof, illustrated with two knife blades in an extended position;

FIG. 9 is a right-side elevational view of FIG. 8; and,

FIG. 10 is a bottom plan view of FIG. 8.

The broken lines showing a logo and text in the figures depict environmental matter and form no part of the claimed design. 

CLAIM We claim the ornamental design for a folding knife, as shown and described. 